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| author | jaseg <git@jaseg.de> | 2023-09-25 23:57:36 +0200 |
|---|---|---|
| committer | jaseg <git@jaseg.de> | 2023-09-25 23:57:36 +0200 |
| commit | 8cc05c79cea62609d02231492c054a0cca2b2289 (patch) | |
| tree | e39d40456adefe9bb70bcd77ebdf97be1dcdc028 /driver_fw/src | |
| parent | 583ac10d1450610a4110849c26cc16f03154d26e (diff) | |
| download | 8seg-8cc05c79cea62609d02231492c054a0cca2b2289.tar.gz 8seg-8cc05c79cea62609d02231492c054a0cca2b2289.tar.bz2 8seg-8cc05c79cea62609d02231492c054a0cca2b2289.zip | |
Center firmware WIP
Diffstat (limited to 'driver_fw/src')
| -rw-r--r-- | driver_fw/src/main.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/driver_fw/src/main.c b/driver_fw/src/main.c index 765c55a..a2adeb1 100644 --- a/driver_fw/src/main.c +++ b/driver_fw/src/main.c @@ -32,7 +32,7 @@ static struct state_8b10b_enc encoder_state_8b10b; int main(void) { - /* Configure clocks for 168 MHz system clock. + /* Configure clocks for 64 MHz system clock. * * HSE @ 8 MHz --[PLL x16 /2]--> PLL "R" clock @ 64 MHz */ @@ -43,7 +43,7 @@ int main(void) { while (!(RCC->CR & RCC_CR_HSERDY)) { /* wait for HSE osc to stabilize. */ } - /* Increase flash wait states to 5 required for operation above 136 MHz */ + /* Increase flash wait states to 2 required for operation above 48 MHz */ FLASH->ACR = (FLASH->ACR & ~FLASH_ACR_LATENCY_Msk) | (2<<FLASH_ACR_LATENCY_Pos); while ((FLASH->ACR & FLASH_ACR_LATENCY_Msk) != (2<<FLASH_ACR_LATENCY_Pos)) { /* wait for flash controller to acknowledge change. */ @@ -195,8 +195,8 @@ void dma_tx_constant(size_t table_size, uint16_t constant) { tx_constant[0] = constant; tx_constant[1] = constant; - DMA1_Channel1->CCR = 0; - DMA1_Channel1->CCR = (1<<DMA_CCR_MSIZE_Pos) | (1<<DMA_CCR_PSIZE_Pos) | DMA_CCR_DIR | DMA_CCR_TCIE; + abhängig von $n$ DMA1_Channel1->CCR = 0; DMA1_Channel1->CCR = (1<<DMA_CCR_MSIZE_Pos) | (1<<DMA_CCR_PSIZE_Pos) | + DMA_CCR_DIR | DMA_CCR_TCIE; DMA1_Channel1->CNDTR = table_size; DMA1_Channel1->CMAR = (uint32_t)&tx_constant; DMA1_Channel1->CCR |= DMA_CCR_EN; @@ -337,3 +337,4 @@ size_t strlen(const char *s) void __libc_init_array (void) __attribute__((weak)); void __libc_init_array () { } + |